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(No Model.)

H. D. RICHARDSON.

- LAMP EXTINGUISHER.

No. 317,203. Patented May 5, 1885.

N, PETERS. PholoLilhognphnr, Washington. D. C.

UNITED Smarts ATENT OFFICE.

, a V HENRY D. RICHARDSON, OF ANSONIA, CONNECTICUT, ASSIGNOR TO XVALLACE 8r SONS, OF SAME PLACE.

LAMP=EXTENGUISHER SPECIFICATION forming part of Letters Patent "\To. 317,203, dated May 5,1885.

Application filed February 9, 1855. (No model.)

To all whom it may concern.-

Be it known that I, H. D. RICHARDSON, of Ansonia, in the county of New Haven and State of Connecticut, have invented a new Improvement in Lamp-Extinguishers; and I do hereby declare the following, when taken in connection with accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-

Figure 1, a sectional view of the burner, showing a front View of the extinguisher, looking toward the flap, the parts in the open condition; Fig. 2, a side View of the same, partly in section 5 Figs. 3 and 4, vertical sectional side views of the wick-tube and extinguishing apparatus, to illustrate its operation, enlarged Fig. 5, a top or plan View Fig. 6, a perspective view of the slide D, with its fixed side E, the flap being removed.

This invention relates to an improvement in extinguishing devices for that class of lampburners which employ a flat wick running through a tube of corresponding shape, the object being a simple construction, and which will cover and uncover the wick without striking or interfering with the surface of the wick itself; and the invention consists in the construction as hereinafter described, and more particularly recited in the claims.

A represents the base or screw of a common lamp-burner; B, the air-distributer; C, the wick-tube, of usual form and application to the burner. Upon the wick-tube a slide, D, is arranged so as to be moved freely up and down. One side of the slide is cut away, leaving the opposite side, E, extending upward. Upon the cut-away side, and below the upper edge of the side E, a flap, F, is hung in cars a, so as to form hinges upon which the said flap F may turn. The ends of the slide incline upward to the opposite side, E, as shown. From the flap F an arm or arms, b, extend outward. (Here represented as two armsone at each end of the flap.) In the burner, below, a lever is hung upon a fulcrum, d, one arm of which extends outward to form a handle, the other inward, branches to form two arms, I I. Between these arms on the lever and the arms I) on the flap is a connecting rod, L, hinged to the arms of the lever and to the arms of the flap. The flap is hung so that when in its down position it lies against the surface of the wick-tube, as seen in Fig. 4, and u so as to take the upper edge of the flap and the upper edge of the side E below the upper end of the burner. In this condition, if the outer arm of the lever H be depressed, it will raise the slide 1), carrying the side E above the upper end of the wick, the flap F riding up on its surface of the wick-tube, as indicated in Fig. 3, and until the hinging-point of the flap arrives at the upper end of the wick-tube, as seen in Fig. 3. Then the flap will be no longer supported by the wick-tube, and will consequently be turned over toward and so as to meet the opposite side, E, as indicated in broken lines, Fig. 3, and close the opening over the wick, so as to extinguish the flame. It will be observed that so soon as the slide reaches the point before mentioned-that is to say, when the hinge of the flap comes to the upper edge of the wickthe slide will cease its further upward movement, and the continued movement of thelever only effects the flap. So, in returning the lever, the first part of the movement as from the position in broken lines, Fig. 3, to that in full lines-the opening movement, is imparted to the flap F, and so as to bring its lower edge against the wick-tube as a bearing before the descent of the slide will commence; but, after such opening of the flap, then the slide and flap will descend to the position seen in Fig. 4, to fully uncover the wick.

At the two ends of the slide D a downward extension, 6, is made, and the lower end turned outward, as at f, to form lugs or stops, which, when the slide reaches its required elevation, will come against the under side of the distributer-plate B, through which the said projections work, and serve as a stop to positively arrest the upward movement of the slide when the required point of elevation shallbe reached. By thus closing the flap after the extinguishing device is fully raised, it cannot come in contact with the wick, and so in opening it will not drag over the wick or in any way disturb its surface, thereby overcoming the ob- ICO jection to many extinguishers, which in opening and closing drag over the end of the wick. On narrow wick tubes a single connection between thelever and the flap will be all that will be required; but on tubes so broad as that shown in the illustrations, two connections are desirable, in order to a free working of the slide in its up-and-down movement.

The slide D is best made as seen in Fig. 6, and so that it may be formed from a single piece of metal; but it is essential only that the slide shall be of such shape as will carry the fixed side E and the hinged side F, and that the two together may substantially close over the wick-tube. o,

' I claim 1. In alamp-burner, the combination therewith of the wick-tube, the slide D, arranged for vertical movement on the wick-tube, and carrying a vertical side, E, parallel with and outside of one side of the wick-tube, the flap F, hinged to said slide opposite the fixed side E, and so that its inner surface may ride against the corresponding side of the wicktube, the said flap constructed with an arm, I), and a lever in'connection with said arm 1) of the flap, substantially as described, whereby after the slide reaches its highest elevation the flap will be turned over the wick-tube or turned away therefrom before the slide begins its descent. 0

2. In a lamp-burner, the combination therewith of the slide D, arranged for vertical movement on the wick-tube, and carrying the fixed side E, said slide constructed with downward projections e, to form stops on the ascent of the slide, the flap F, hinged to the slide opposite the fixed side E, adapted to work against the corresponding side of the wicktube, and constructed with an arm, 12, projecting outward therefrom, with a lever in connection with said arm, substantially as described, and whereby the said slide may be raised to its full height, and after such full height is attained the flap be turned over to close upon said side E, or turned therefrom before the descent of the slide commences.

HENRY D. RICHARDSON.

\Vitnesses:

B. S. BRADLEY," E. L. BRYANT. 

